Expose bioformats_package on the Bio-Formats downloads page

- Promote the new bioformats_package.jar on the main downloads page
- Move the deprecated loci_tools.jar to the components section
- Use new icons for the tools downloads
Order artifacts alphabetically
Add source zip to the source code section in the OMERO downloads page
Add file size, file name and md5 to source zip
Add javadocs zip to the Bio-Formats downloads page

- Create API documentation section similar to OMERO downloads page
Use bioformats_package instead of loci_tools for the renaming example
Replace artifacts by components in the downloads page
Replace Bio-Formats Package JAR icon
Add double anchor for the components section
Rename build components as downloads components
Fix typo
Merge pull request #47 from sbesson/bioformats_package

Add new JAR to Bio-Formats downloads page
Merge pull request #46 from sbesson/omero_source

Add source zip to the source code section in the OMERO downloads page
Merge pull request #48 from sbesson/artifacts2components

Replace artifacts by components in the downloads page